Many thanks BBM2, I'm pleasantly surprised to have "won". Disregarding my own clue as I usually do, my assessment of the leading entries wasn't very different from yours, although personally I also really liked Les's clever use of "governs = requires" assuming I've parsed it correctly. However, it's all subjective and I get my enjoyment from simply taking part and hopefully producing a clue of an acceptable standard then parsing and enjoying the others although the acknowledgement of one's clue(s) is always appreciated.
Nice clip Marty, I'll try and keep the theme going next week together with a suitable word or phrase. Cheers.